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Maskavs, M.; Kalniņš, Mārtiņš; Laka, Marianna; Chernyavskaya, S. A.

doi:10.1023/a:1010677704586

Cited by 14 publications

(5 citation statements)

References 5 publications

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“…38 Cellulose nanofibrils certainly have better reinforcement potential than carbon black due to higher aspect ratio. Previous attempts to use microcrystalline cellulose as reinforcement in polymer composites [39][40][41][42][43] have not produced as strong reinforcement effects as in the present nanocomposite. The scale of the microcrystalline cellulose was typically in the order of tens of micrometers and above, and the shape was in the form of particles.…”

Section: Resultsmentioning

confidence: 82%

A High Strength Nanocomposite Based on Microcrystalline Cellulose and Polyurethane

et al. 2007

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A high-strength elastomeric nanocomposite has successfully been prepared by dispersing microcrystalline cellulose in a polyurethane matrix. The resulting nanocomposites show increased strain-to-failure in addition to increased stiffness and strength compared to the unfilled polyurethane. The optimal composite contained 5 wt % cellulose. The average true strength for this composition was 257 MPa, compared with 39 MPa for the neat polyurethane, and showed the highest strain-to-failure. The improvements of stiffness, strength, as well as strain-to-failure are believed to be due to good interaction, by both covalent and hydrogen bonds, between the polyurethane and the cellulose nanofibrils.

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Section: Resultsmentioning

confidence: 82%

A High Strength Nanocomposite Based on Microcrystalline Cellulose and Polyurethane

et al. 2007

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“…These fibers have been used successfully with polystyrene and polyethylene to prepare composites. [15][16][17] They are potential reinforcing agent for polymer composites due to their high crystallinity index, high crystallite size, and excellent thermomechanical properties. On the other hand, ethylene copolymer grafted with maleic anhydride is especially manufactured for the improvement of impact properties of polyamides.…”

Section: Introductionmentioning

confidence: 99%

Characterization of polyamide 6.10 composites incorporated with microcrystalline cellulose fiber: Effects of fiber loading and impact modifier

et al. 2018

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Microcrystalline cellulose (MCC) fiber-reinforced polyamide 6.10 (PA) composites were prepared in the presence of an impact modifier (IM), exxelor VA1803 (VA), by melt compounding process. Fiber loading was considered from 20 to 30 wt.%, whereas IM was varied from 2.0 to 5.0 wt.%. Composites were characterized by tensile test, impact test, dynamic thermal mechanical analysis (DTMA), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and X-ray diffraction (XRD). Composites' fractured surfaces were examined by scanning electron microscope (SEM). In addition, fiber size distribution was also analyzed. Result analyses showed that the fiber incorporation changed the tensile strength (TS) slightly, but the tensile modulus (TM) significantly. The TM was found to be improved by 45% at the amount of fiber loading of 30 wt.%. Moreover, the thermomechanical properties revealed that the storage modulus (SM) and loss modulus (LM) were increased due to the incorporation of MCC, which was improved further by the uses of 5.0 wt.% of VA. The MCC possess high crystallinity index and high crystallite size along with enhanced mechanical and thermal properties. Therefore, the extraordinary benefit of using MCC in PA was evaluated in terms of thermomechanical, structural, and thermal properties in the presence of the impact modifier.

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“…However, the key drawbacks of cellulose fiber are the incompatibility with most hydrophobic polymeric matrices including PP, the limitation of processing temperature, and the water absorption [8]. The presence of absorbed water in CMFs decreases the interfacial adhesion to most polymeric matrices [9]. Introduction of a hydrophobic polymer onto a cellulose fiber could significantly enhance the hydrophobicity of the cellulose fiber, thus improving its adhesion to the polymeric matrix.…”

Section: Introductionmentioning

confidence: 99%

Polypropylene-Based Biocomposites Reinforced by Tailor-Modified Cellulose Fibers and Microfibrils

Pan

Xiao

2013

AMR

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Two approaches of improving the toughness of polypropylene (PP)-based composites reinforced by natural cellulose fibers were developed. The surface modification of cellulose fibrils (CMF) or fiber by either in-situ grafting polymerization of butyl acrylate (BA) on CMF surface via an atom transfer radical polymerization (ATRP) or adsorbing the cationic polymeric latex with core-shell structure on fiber surfaces was performed; and resulting fibers or CMF were used as reinforments in an attempt to enhance the toughness of the PP-based composites. The results of mechanical properties indicated that the flexure, tensile, and impact strengths of the CMF-g-PBA reinforced composites were all improved. The cellulose fibres treated by cationic latex also showed the same trend. The optimal dosage of latex for hydrophobic-modifying fibers was also identified.

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Cited by 14 publications

References 5 publications

A High Strength Nanocomposite Based on Microcrystalline Cellulose and Polyurethane

A High Strength Nanocomposite Based on Microcrystalline Cellulose and Polyurethane

Characterization of polyamide 6.10 composites incorporated with microcrystalline cellulose fiber: Effects of fiber loading and impact modifier

Polypropylene-Based Biocomposites Reinforced by Tailor-Modified Cellulose Fibers and Microfibrils

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